Please give me advice

Elisabeth
me and my boyfriend had sex without protection but he didn't ejaculate inside, plus he put on the condom after a minute or so, well I was scared that I stayed pregnant and I got the day after pill and everything was okay I got my period as usual, the next month we re did it with no condom but he put the condom on right away, but this time my period is late! I don't know what to think, is it late cause of the pill from last time or am I pregnant? Please help I'm scared.
​P.s i started a semi diet so that might also have affected my period